<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'

export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '350px'
    },
    autoResize: {
      type: Boolean,
      default: true
    },
    chartData: {
      type: Object,
      required: true
    },
    name: {
      type: String,
      default: '前缀'
    },
  },
  data() {
    return {
      chart: null,
      inited: false
    }
  },
  watch: {
    chartData: {
      deep: true,
      handler(val) {
        if(!this.inited){
          this.initChart();
          this.inited=true;
        }else{
          this.setOptions(val)
        }

      }
    }
  },
  mounted() {
    // this.$nextTick(() => {
    //   this.initChart()
    // })
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons')
      this.setOptions(this.chartData)
    },
    setOptions({ dateList,data } = {}) {
      this.chart.setOption({
        xAxis: {
          data: dateList,
          boundaryGap: false,
          axisTick: {
            show: false
          }
        },
        grid: {
          left: 10,
          right: 10,
          bottom: 20,
          top: 30,
          containLabel: true
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross'
          },
          padding: [5, 10]
        },
        yAxis: {
          axisTick: {
            show: false
          }
        },
        legend: {
          data: [this.name]
        },
        series: [{
          name: this.name, itemStyle: {
            normal: {
              color: '#1c1fff',
              lineStyle: {
                color: '#1c1fff',
                width: 2
              }
            }
          },
          smooth: true,
          type: 'bar',
          data: data,
          animationDuration: 2000,
          animationEasing: 'cubicInOut'
        }
        ]
      })
    }
  }
}
</script>
